Pipeline crawler

Details Pipeline crawler Pipeline crawler

1970-10-12

1977-02-01

Lawrence, James W.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

73 675R, 73 678S, 104138R, 104138G, 250491, G01N 2100, G01N 2300, B61B 1310

Patent

active

040063593

ABSTRACT:
A crawler is disclosed for traveling through a workpiece such as a pipeline and inspecting the same for defects. The crawler is a completely self-contained, self-propelled and self-operated vehicle adapted to travel through a pipeline, stop at particular locations such as a girth weld between adjoining sections of pipe, inspect the weld, for example by X-raying it and then proceed onto the next location to be inspected.

REFERENCES:
patent: 2532536 (1950-12-01), Boucher
patent: 3087058 (1963-04-01), Aruanetakis et al.
patent: 3492477 (1970-01-01), Arnesen
"Pipeline Crawler Seeks Defects in Welded Joints" from Materials Evaluation, July, 1968, pp. 44a & 45a.

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